Category: 112-63-0

Peng, Wei; Chen, Yunhui; Tumilty, Steve; Liu, Lizhou; Luo, Ling; Yin, Haiyan; Xie, Yongmei published the artcile< Paeoniflorin is a promising natural monomer for neurodegenerative diseases via modulation of Ca2+ and ROS homeostasis>, HPLC of Formula: 112-63-0, the main research area is calcium neuroprotectant neurodegenerative.

Neurodegenerative diseases (NDDs) are a range of neurol. disorders featured by neuronal degeneration and apoptosis. Cellular Calcium (Ca2+) and reactive oxygen species (ROS) dyshomeostasis are the earliest and important events in the development of NDDs and may yield promising therapeutic targets for NDDs. Paeoniflorin, a water-soluble monoterpene glucoside, is the major bioactive monomer extracted from the root of Paeonia lactiflora pall. Increasing evidence has suggested that this natural compound might be used to treat various NDDs, and its potential mol. mechanisms are related to the modulation of Ca2+/ROS homeostasis in cells. In addition, paeoniflorin accounts for more than 40% of the total glucosides of herbaceous peonies with abundant herbaceous sources. Furthermore, it has also been validated as a safe extraction in clin. pharmacol. research with a wide therapeutic window. Hence, it is rational to anticipate paeoniflorin being a promising candidate for the treatment of NDDs via regulating Ca2+/ROS dyshomeostasis.

Current Opinion in Pharmacology published new progress about Homeostasis. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, HPLC of Formula: 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Huang, Lichuang; Hu, Shaoqi; Shao, Meiyu; Wu, Xin; Zhang, Jida; Cao, Gang published the artcile< Combined cornus officinalis and paeonia lactiflora pall therapy alleviates rheumatoid arthritis by regulating synovial apoptosis via AMPK-mediated mitochondrial fission>, HPLC of Formula: 112-63-0, the main research area is cornus officinalis paeonia lactiflora rheumatoid arthritis synovial apoptosis; inflammation; oxidative stress; paeoniflorin; synovial tissue; ursolic acid.

Rheumatoid arthritis (RA) is a chronic autoimmune disease that leads to cartilage destruction and bone erosion. In-depth exploration of the pathogenesis of RA and the development of effective therapeutic drugs are of important clin. and social value. Herein, we explored the medicinal value of Cornus officinalis Sieb. and Paeonia lactiflora Pall. in RA treatment using a rat model of collagen-induced arthritis (CIA).We compared the therapeutic effect of Cornus officinalis and Paeonia lactiflora with that of their main active compounds, ursolic acid and paeoniflorin, resp. We demonstrated that the combination of Cornus officinalis and Paeonia lactiflora effectively inhibited the release of factors associated with oxidative stress and inflammation during RA, therein ameliorating the symptoms and suppressing the progression of RA. We further showed that the underlying mechanisms may be related to the regulation of apoptosis in synovial tissues, and we investigated the potential involvement of AMPK-mediated mitochondrial dynamics in the therapeutic action of the two drugs and their active components.

Frontiers in Pharmacology published new progress about AMP-activated protein kinase activators. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, HPLC of Formula: 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Kurthkoti, Krishna; Kumar, Pradeep; Sang, Pau Biak; Varshney, Umesh published the artcile< Base excision repair pathways of bacteria: new promise for an old problem>, Formula: C19H34O2, the main research area is bacteria base excision repair pathway review.

A review. Infectious diseases continue to be a major cause of human mortality. With the emergence of drug resistance, diseases that were long thought to have been curable by antibiotics are resurging. There is an urgent clin. need for newer antibiotics that target novel cellular pathways to overcome resistance to currently used therapeutics. The base excision repair (BER) pathways of the pathogen restore altered bases and safeguard the genomic integrity of the pathogen from the host′s immune response. Although the BER machinery is of paramount importance to the survival of the pathogens, its potential as a drug target is largely unexplored. In this review, we discuss the importance of BER in different pathogenic organisms and the potential of its inhibition with small mols.

Future Medicinal Chemistry published new progress about Chemotherapy Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Formula: C19H34O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Stoyanovich, F. M.; Marakatkina, M. A. published the artcile< Formation of 3-lithio-4,5-dehydrotoluene from 4-fluoro-3,5-dibromotoluene>, Synthetic Route of 112-63-0, the main research area is lithiodehydrotoluene; benzyne lithium derivative; dehydrotoluene lithio.

Treating 4,3,5-Br(F)2C6H2Me with BuLi at -90° gave only 2,3,5-F(Br)(Me)C6H2CO2H after carbonation, but analogous reaction at -70° gave 4,3,5-Bu(HO2C)2C6H2Me via the title benzyne (I). I also gave dimers II (R = H, CO2H), and reacted with LiNPh2 to give 4,3,5-Ph2N(R)2C6H2Me (same R).

Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya published new progress about Elimination reaction. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Synthetic Route of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Singh, Anil K.; Manjula, D. published the artcile< A fluorescence study of 1-p-aminophenyl-4-phenylbuta-1E,3E-diene in organic solvents, 1,4-dioxane-water binary mixtures and micelles>, Formula: C19H34O2, the main research area is fluorescence aminophenylphenylbutadiene organic solvent; solvent effect fluorescence aminophenylphenylbutadiene; dioxane water binary mixture fluorescence aminophenylphenylbutadiene; micelle fluorescence aminophenylphenylbutadiene.

1-P-Aminophenyl-4-phenylbuta-1E,3E-diene (1) was synthesized and its UV-visible absorption and fluorescence emission and excitation spectral properties in a variety of media including organic solvents and 1,4-dioxane-water binary mixtures of varying relative permittivity, and microheterogeneous media of SDS, CTAB and Triton-X-100 micelles were examined In contrast to a largely solvent polarity insensitive nature of the UV-visible absorption and fluorescence excitation spectra, the fluorescence emission maximum (λf max) and the fluorescence quantum yield (Φf) of 1 are significantly influenced by polarity of the medium. The aminodiene 1 in nonpolar n-heptane shows λf max at 422 nm, but in relatively more polar solvents it shows two bands at 426-438 and 467-492 nm, depending on the relative permittivity of the medium. In general, as the polarity of medium is increased, the λf max of 1 undergoes gradual red shift with decreased fluorescence intensity at the shorter wavelength fluorescence band and enhanced fluorescence intensity at the longer wavelength fluorescence band. Further, as the polarity of the medium is increased, the Φf decreases. The solvatochromic fluorescence of 1 also was discussed in terms of the solvent polarity parameter, Δf. In the micellar medium also, 1 exhibits two fluorescence bands, which appear more prominently in SDS micelles as compared to in CTAB or in Triton-X-100 micelles. The positions of the fluorescence bands are dependent on the electronic charges of the micelles. Micropolarity of the solubilization site of 1 in various micelles also was discussed and probably 1 is intercalated in the interfacial domains of the micelles. In general, 1 fluoresces more efficiently in neutral micelles of Triton-X-100 than in ionic micelles of SDS or CTAB. The fluorescence properties of 1 were discussed in terms of the involvement of apolar, initially prepared locally excited state (in nonpolar medium) and dipolar, intramol. charge transfer excited state (in polar medium) along with the possible influence of the solvent polarity induced energy level reordering of the lowest singlet excited states of the aminodiene. This study has brought out interesting features of the excited state structure and dynamics of donor-acceptor diphenylpolyenes and showed the importance of charge transfer excited states in the photoprocesses of linear polyenes in general. Addnl., it provides new directions for designing fluorescence probes as sensors and reporters of the microenvironment of organized assemblies.

Journal of the Indian Chemical Society published new progress about Alkadienes Role: PEP (Physical, Engineering or Chemical Process), PRP (Properties), SPN (Synthetic Preparation), PROC (Process), PREP (Preparation). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Formula: C19H34O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Naga, Naofumi; Satoh, Mitsusuke; Magara, Tomoyuki; Ahmed, Kumkum; Nakano, Tamaki published the artcile< Synthesis of gels by means of Michael addition reaction of multi-functional acetoacetate and diacrylate compounds and their application to ionic conductive gels>, Quality Control of 112-63-0, the main research area is acetoacetate diacrylate Michael addition reaction ionic conductive polymer gel; mech property.

Michael-addition reactions of multi-functional acetoacetate, meso-erythritol tetraacetoacetate (ETAA), trimethylolpropane triacetoacetate (TPTAA), and diacrylate compounds, 1,4-butanediol diacrylate, 1,6-hexanediol diacrylate, 1,9-nonanediol diacrylate, or poly(ethylene glycol) diacrylate (PEGDA), in DMSO have successfully yielded the corresponding gels in the presence of 1,8-diazabicyclo[5.5.0]undecane-7-ene as a catalyst at room temperature The gel formation rates of the reaction systems with TPTAA were higher than those with ETAA. The gels prepared with the alkyl diacrylate compounds or low mol. weight PEGDA showed higher Young’s modulus in compression test. The ETAA-PEGDA gels were also prepared in propylene carbonate containing Li ion or in an ionic liquid These gels showed good ionic conductivity with conductivity value as high as 2.26 and 2.38 mS/cm at room temperature for the Li ion and ionic liquid containing systems resp.

Journal of Polymer Science (Hoboken, NJ, United States) published new progress about Activation energy. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Quality Control of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Suzuki, Takayoshi; Nagae, Osamu; Kato, Yuka; Nakagawa, Hidehiko; Fukuhara, Kiyoshi; Miyata, Naoki published the artcile< Photoinduced Nitric Oxide Release from Nitrobenzene Derivatives>, Formula: C19H34O2, the main research area is nitrobenzene derivative preparation photoinduced NO donor antitumor cancer.

A new type of photoinduced nitric oxide (NO) donors was designed from nitrobenzene derivatives Visible-light irradiation of 2,6-dimethylnitrobenzenes bearing extended π-electron systems at the 4-position revealed efficient NO release using ESR anal. and the Griess assay. Computational study and UV spectrum anal. suggested that the NO-releasing activity was closely related to the conformation of the nitro group, the absorption intensity, and the length of the conjugated π-electron system. Employing the photodependent cytotoxicity of compound 14 against HCT116 human colon cancer cells, it was demonstrated that 4-substituted-2,6-dimethylnitrobenzene analogs are useful NO donors for the time- and site-controlled NO treatment.

Journal of the American Chemical Society published new progress about Antitumor agents. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Formula: C19H34O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Raczynska, E. D. published the artcile< Application of semiempirical method (AM1) to the study of tautomeric equilibria in the gas phase for simple compounds containing the amidine group: 4(5)-substituted imidazoles>, Category: esters-buliding-blocks, the main research area is MO gas phase tautomeric equilibrium imidazole; protonation amidine imidazole derivative; acid base equilibrium amidine imidazole derivative.

Semiempirical method (AM1) has been used to predict the tautomeric equilibrium constants (pKT) in the gas phase for 4(5)-substituted imidazoles. The pKT values have been calculated on the basis of heats of formation of individual tautomers. In calculations it has been assumed that the TΔS term has the same value for both tautomers. For comparison, the pKT values have also been estimated on the basis of the calculated (by AM1) proton affinities of N-methyl-4- and 5-substituted imidazoles. Both estimations give almost the same pKT values. Obtained results are compared with those found in solution Comparison shows that the gas-phase substituent effects do not reproduce well those in solution To find an explanation of this observation, the influence of rotational isomerism of substituent on the tautomeric equilibrium constant has been studied. Proton affinities and deprotonation enthalpies of 4- and 5-substituted imidazoles have also been calculated For unsubstituted imidazole, 4(5)-methyl-imidazole and their N-Me derivatives they are compared with those exptl. obtained. Errors are considerably smaller than the average errors of AM1 method for nitrogen acids and bases.

Analytica Chimica Acta published new progress about Acid-base equilibrium. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Category: esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Kamiya, Mamoru; Akahori, Yukio published the artcile< π-Electronic structures of amino-substituted purines and pyrimidines>, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate, the main research area is electronic structure amino purines; pyrimidenes electronic structure; transition purines pyrimidines.

SCF MO calculations (both with and without configuration interaction) were reported for all known aminosubstituted purines and pyrimidines by using the Pariser-Parr-Pople method in the self-consistent electronegativity approximation (R. D. Brown and M. L. Heffernan, 1958). The results are given of the π-π* transition energy, their oscillator strength, the directions of their transition moment, the energies of the highest-occupied and the lowest-vacant orbitals, the π-electron d. in the ground and the 1st excited (S1) and triplet (T1) states, and the frontier electron d. in the ground state. The 1st and 2nd π-π* transition energies in monoaminopyrimidines agree with experiments, without configuration interactions; the predicted amino-substitution effects on the decrease in the transition energy and the increase in the oscillator strength also agree with the exptl. found sequence. The transition energies for the purines, on the other hand, agree with experiments when the configuration interactions are taken into consideration; such comparison allows the assignment of the 4 absorption bands (4.6 ∼ 6.6 eV). The inclusion of configuration interaction increases the difference in the S1 and T1 energies of the purines but it decreases the corresponding difference in the pyrimidines. The compounds examined were pyrimidine, 2-, 4-, and 5-aminopyrimidine, 2,4-, 2,5-, 4,5-, and 4,6-diaminopyrimidine, 2,4,5-, 2,4,6-, and 4,5,6-triaminopyrimidine, 2,4,5,6-tetraminopyrimidine, purine, 2-, 6-, and 8-aminopurine, 2,6-, 2,8-, and 6,8-diaminopurine, and 2,6,8-triaminopurine.

Nippon Kagaku Zasshi published new progress about Electron configuration. 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Safety of (9Z,12Z)-Methyl octadeca-9,12-dienoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Tresohlava, Eliska; Popelka, Stepan; Machova, Ludka; Rypacek, Frantisek published the artcile< Modification of Polylactide Surfaces with Lactide-Ethylene Oxide Functional Block Copolymers: Accessibility of Functional Groups>, Reference of 112-63-0, the main research area is polylactide surface lactide ethylene oxide functional block copolymer.

Feasibility of using amphiphilic block copolymers composed of polylactide (PLA) and poly(ethylene oxide) (PEO) blocks for biomimetic surface modification of polylactide-based biomaterials for tissue engineering was investigated. PEO-b-PLA copolymers were deposited on the PLA surface from a solution in PEO-selective solvent. Copolymers with a neutral ω-methoxy end group of the PEO block (mPEO-b-PLA) were used to provide hydrophilic surface of PLLA, which exhibited suppressed nonspecific protein adsorption. Their analogs, containing biotin group at the end of PEO block (bPEO-b-PLA), were used as a model of functional copolymers, carrying a biomimetic group, for example, a cell-adhesion fibronectin-derived peptide sequence. The surface topog. of functional groups on the modified surface and their accessibility for interaction with a protein receptor was investigated, taking advantage of specific biotin-avidin interaction, on surfaces modified with a combination of mPEO-b-PLA and bPEO-b-PLA copolymers. The accessibility of model biotin groups for interaction with their protein counterpart was proven through visualization of avidin or avidin-labeled nanospheres with at. force microscopy.

Biomacromolecules published new progress about Adsorption (of proteins). 112-63-0 belongs to class esters-buliding-blocks, and the molecular formula is C19H34O2, Reference of 112-63-0.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics